IL | DuPage | Belmont Prairie | Old Route | 12 | 17 |
IL | Cook | Bergman Slough | Main Route | 4 | 17 |
IL | Cook | Black Partridge Woods | Old Route | 7 | 18 |
IL | DuPage | Blackwell Kame | Old Route | 1 | 7 |
IL | Cook | Bluff Spring Fen | Main Route | 6 | 40 |
IL | Kane | Brewster Creek Fen | Old Route | 5 | 15 |
IL | Kane | Burlington Prairie | Old North Route | 4 | 12 |
IL | Cook | Camp Sagawau | Main Route | 5 | 14 |
IL | Kane | Campton Hills | Old Route | 5 | 12 |
IL | Cook | Cap Sauers | Main Route | 5 | 29 |
IL | Grundy | Commonwealth Edison Prairie | Old Route | 2 | 22 |
IL | Kane | Dick Young | Nelson Lake Marsh | 7 | 19 |
IL | Peoria | Forest Park | Main Route | 1 | 7 |
IL | Kane | Freeman Kame | Old Route | 1 | 16 |
IL | Cook | Gensburg-Markham Prairie | Main Route | 2 | 23 |
IL | Grundy | Goose Lake Prairie | Old Route | 11 | 38 |
IL | Kane | Horlock Hill | Old Route | 8 | 16 |
IL | Will | Joliet Junior College | Main Route | 4 | 18 |
IL | Kane | Lone Grove | Old Route | 4 | 14 |
IL | Champaign | Meadowbrook Park | Old Route | 3 | 13 |
IL | Lee | Nachusa Grasslands | Old Route | 5 | 36 |
IL | Cook | Poplar Creek | Shoe Factory Road | 7 | 12 |
IL | Mason | Revis | Old Route | 1 | 23 |
IL | Peoria | Robinson Park | Old Route | 4 | 12 |
IL | Macon | Rock Springs Environmental Center | Main Route | 14 | 28 |
IL | Will | Romeoville Prairie | Main Route | 1 | 15 |
IL | Peoria | Root Cemetery | Old Route | 1 | 5 |
IL | McHenry | Sands Main Street Prairie | Old Route | 4 | 16 |
IL | Cook | Somme | Old Prairie Grove | 1 | 5 |
IL | Cook | Spears Woods | Main Route | 6 | 22 |
IL | Peoria | Springdale Cemetery Prairie | Old Route | 2 | 13 |
IL | Cook | Sundrop Prairie | Main Route | 1 | 21 |
IL | Whiteside | Thomson-Fulton Sand Prairie | Main Route | 18 | 25 |
IL | Cook | Turnbull Woods | Main Route | 10 | 13 |
IL | Cook | Turtlehead Lake | Old Route | 6 | 9 |
IL | Lake | Wadsworth Prairie | Old Route | 5 | 8 |
IL | Cook | Wayside Woods Prairie | Old Route | 3 | 10 |
IL | Champaign | Welles Cemetery | Old Route | 4 | 11 |
IL | DuPage | West Chicago Prairie | 1989 Route | 5 | 24 |
IL | Cook | Wolf Road Prairie | Main Route | 3 | 8 |